Aeroplane.



FPBBOl R 192729805 H. I. HOGAN.

AEROPLANE.

APPLICATION FILED lum; 25.1911.

1,272,805. PatentedJu1y16,-191s.

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i --meiinwmn HERBERT J'. HOGAN, OF LOS ANGELES, CALIFORNIA.

AEROPLANE.

Patented JulyT 16, 1918.

Application Iled J' une 25, 1917. Serial No. 176,846.

1 ,272,805, Specification of Letters Patent.

To all whom t may concern Be it known that I, HERBERT J. HOGAN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles is secured in the side of the body 11 and 60 and State of California, have invented a new which passes through the lower end of the and useful Aeroplane, of which the followstrut 18. The shafts 17 and 20 are at or a ing is a specification. little in front of the centers of pressures of My invention relates to the art of aviation, the wings in their normal position. Pivoted and more particularly to the heavier than onto the planes and 1G, by means of a 65 air machines which are commonly termed Shaft, are connecting bars 21. The bars 21 aeroplanes. are pivoted to the planes 19 by means of The principal object of my invention is shafts 23. The shafts 23 pass through the to provide a special form of control for use sides of the body 11, and are engaged by the in such planes, eXtreme end of levers 24; which are secured 70 A further object of my invention is to to the shaft 20. Secured on the shaft is provide means for shifting the weight ofthe a hand lever 25 which is provided with a operator to compensate for changes in the pawl 26 which engages a toothed segment 27. control. More specifically my invention pro- The pawl 26 is operated by an auxiliary vides for changing the angle of the planes handle 28. Rigidly secured to the shaft with relation to the body of the plane. 20, is a seat lever 30, which is connected to Further objects and advantages will be the bottom of a sliding seat 31 through a made evident hereinafter, link 32. The seat 31 is mounted on the ways Referring to the drawings, ihch {1,1@ for SeClll'd. t0 the inside 0f illustrative purposes only: The method of operation is as follows: 80 Figure 1 is a side elevation of an aero- The planes 15, 1 6 and 19 may be considplane equipped with my invention, a portion ered as normally 1n the position shown in of the body being broken away to better full lines 1n Fig. 1. WVhenever the operator illustrate the invention. desires to change the inclination of the Fig. 2 represents a section on a plane repplanes with relation to the body l1, he 85 resented by the line 2-2 of Fig. 1. moves the hand lever 25 backward or for- Fig. 3 is a plan View, partly in section, ward, first releasing the pawl 26 by means showing the method of control. of the auxiliary handle 28. By suitable In the form of the invention illustrated in manipulation of the handle 25 he can adjust these drawings, an aeroplane body 11 is the planes with relation to the body 11, 90 shown. This body is provided with a prothrowing them into the position shown in peller 12 at the forward end. It is driven dotted .lines in Fig. 1, or into any intermediby a suitable engine not shown. Suitable ate positlon. As the lever 25 is moved backguiding and controlling means 13 are proward or forward the seat 31 is also shifted vided at the rear of the body 11, and ailerons backward or forward, thus varying the disor suitable stabilizing means may be suptribution of the welght of the aviator on plied, in accordance with standard practice. occupying the seat. This change in the dis- The engine, and method of controlling the tribution of the weight compensates for the engine, and the method of controlling` the change in position. means 13, and the ailerons, are omitted from I claim as my invention the drawings, as they form no portion of the 1. An aeroplane comprising a body; propresent invention, being well known in the pelling and guiding means for said body; a art. pair of struts secured to said body; an upper My invention is shown as applied to a bipivot secured at the upper end of each of plane. It may, however, be applied to a said struts; a lower pivot secured to the monoplane, or indeed to machines having lower end of each of said struts; upper any number of planes, by means of suitable planes pivoted on said upper pivots; lower modifications, which can be accomplished planes pivoted on said lower pivots; conwithout the necessity of invention. necting bars connecting said upper and lower In the form shown, a pair of upper side planes; a lever system for raising and lowerplanes 15 are used in combination with an upper central plane 16. The planes 15 and 16 are pivoted on Aa shaft 17 carried on the upper end of a strut 18, and lower side planes 19 are pivoted on a shaft 20, which ing said connecting bars; a sliding seat on which the aviator may sit; means for operating said sliding seat from said lever system; and means for locking said lever system in any one of several positions.

2. An aeroplane comprising a body; propelling and guiding means for said body; a pair of struts secured to said body; an upper pivot secured at the upper end of each of said struts; a lower pivot secured to the lower end of each of said struts; upper planes pivoted on said upper pivots; lower planes pivoted on said lower pivots; connecting bars connecting said upper and lower planes; operating levers rigidly secured to said lower ivot and connected at their outer ends to said connecting bars; a hand lever fixed to said lower pivot; and means for locking said hand lever at Various positions.

3. An aeroplane Comprising a body; propellin and guiding means for said body; a pair oi struts secured to said body; an upper pivot secured at the upper end of each of said struts; a lower pivot secured to the lower end of eaoh of said struts; upper planes pivoted on said upper pivots; lower planes pivoted on said lower pivots; connecting bars connecting said upper and lower planes; operating levers rigidly secured to said lower ivot and connected at their outer ends to said connecting bars; a hand lever iXed to said lower pivot; a seat slidably mounted in said body; means for so connecting said seat to said lower pivot that said seat is moved forward or back as saidl hand lever is moved; and means for looking said hand lever at various positions.

In testimony whereof I have hereunto set.-

my hand at Los An eles, California, this 16th day of June, 191

HERBERT J HOGAN.

copies ot this patent may be obtained for ve cents each, by addressing the Commissioner o! Patents, Washington, D. C. 

